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WO2003034349A3 - Reduction de la directivite de l'orientation et amelioration de la distance de fonctionnement des bobines de detecteurs magnetiques dans un champ magnetique - Google Patents

Reduction de la directivite de l'orientation et amelioration de la distance de fonctionnement des bobines de detecteurs magnetiques dans un champ magnetique Download PDF

Info

Publication number
WO2003034349A3
WO2003034349A3 PCT/US2002/033196 US0233196W WO03034349A3 WO 2003034349 A3 WO2003034349 A3 WO 2003034349A3 US 0233196 W US0233196 W US 0233196W WO 03034349 A3 WO03034349 A3 WO 03034349A3
Authority
WO
WIPO (PCT)
Prior art keywords
pke
magnetic
sensor coils
magnetic field
fob
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2002/033196
Other languages
English (en)
Other versions
WO2003034349A2 (fr
Inventor
Ruan Lourens
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Microchip Technology Inc
Original Assignee
Microchip Technology Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Microchip Technology Inc filed Critical Microchip Technology Inc
Publication of WO2003034349A2 publication Critical patent/WO2003034349A2/fr
Publication of WO2003034349A3 publication Critical patent/WO2003034349A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/32—Adaptation for use in or on road or rail vehicles
    • H01Q1/3208—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used
    • H01Q1/3233—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used particular used as part of a sensor or in a security system, e.g. for automotive radar, navigation systems
    • H01Q1/3241—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used particular used as part of a sensor or in a security system, e.g. for automotive radar, navigation systems particular used in keyless entry systems
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C2009/00753—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
    • G07C2009/00769—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means
    • G07C2009/00777—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means by induction

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lock And Its Accessories (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

L'invention a pour objet un système d'entrée passive exempte de clé (PKE), dans lequel un porte-clés PKE comprend des bobines de détecteurs magnétiques disposées dans des orientations non perpendiculaires et non parallèles, ce qui débouche sur un modèle de capteur omnidirectif plus uniforme, lors de la détection d'une source de champ magnétique à variation temporelle provenant d'une station de base interrogatrice du système PKE. Ces bobines de détecteurs magnétiques peuvent également être accordées avec des décalages, de manière à réduire le changement de la résonance de fréquences provoqué par une interaction de couplage de l'inductance mutuelle et/ou à créer un motif souhaité de capture de réponses de fréquences de champ magnétique. La diminution des zones voisines de zéro d'orientations différentes des résultats de porte-clés PKE débouche sur un fonctionnement plus uniforme et fiable du système PKE, et l'accord des détecteurs magnétiques destinés à fonctionner au sein de la largeur de bande et de la fréquence correctes du signal magnétique d'interrogation accroît la gamme de fonctionnement utile du porte-clés PKE.
PCT/US2002/033196 2001-10-18 2002-10-17 Reduction de la directivite de l'orientation et amelioration de la distance de fonctionnement des bobines de detecteurs magnetiques dans un champ magnetique Ceased WO2003034349A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/983,001 2001-10-18
US09/983,001 US20030076093A1 (en) 2001-10-18 2001-10-18 Reducing orientation directivity and improving operating distance of magnetic sensor coils in a magnetic field

Publications (2)

Publication Number Publication Date
WO2003034349A2 WO2003034349A2 (fr) 2003-04-24
WO2003034349A3 true WO2003034349A3 (fr) 2003-11-06

Family

ID=25529731

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/033196 Ceased WO2003034349A2 (fr) 2001-10-18 2002-10-17 Reduction de la directivite de l'orientation et amelioration de la distance de fonctionnement des bobines de detecteurs magnetiques dans un champ magnetique

Country Status (2)

Country Link
US (1) US20030076093A1 (fr)
WO (1) WO2003034349A2 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7433647B2 (en) * 2005-05-12 2008-10-07 Lear Corporation Transmit antenna multiplexing for vehicular passive entry systems
US7420512B2 (en) 2005-08-02 2008-09-02 M/A-Com, Inc. Antenna system
DE102005060914A1 (de) * 2005-12-20 2007-06-28 Atmel Germany Gmbh Verfahren zum Übertragen von Informationen und Signalübertragungssystem, insbesondere zur Zugangskontrolle
US20100010565A1 (en) * 2008-07-09 2010-01-14 Samuel Victor Lichtenstein Extended range wireless muscular and neural stimulation
US8497688B2 (en) * 2010-04-14 2013-07-30 Electric Power Research Institute, Inc. Non-contact arc detection apparatus and method
US20130119992A1 (en) * 2011-11-14 2013-05-16 The Charles Machine Works, Inc. Automatic Locator Antenna Tuning System
US10107931B2 (en) 2014-06-23 2018-10-23 The Charles Machine Works, Inc. Noise measurement in a locating receiver
FR3024574B1 (fr) * 2014-07-31 2017-10-27 Continental Automotive France Dispositif de communication par couplage magnetique
US10444916B2 (en) * 2017-03-10 2019-10-15 Cypress Semiconductor Corporation Combined inductive sensing and capacitive sensing

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0783190A1 (fr) * 1996-01-02 1997-07-09 Texas Instruments Deutschland Gmbh Antenne passive x-y-z pour transpondeur
WO1998049653A1 (fr) * 1997-05-01 1998-11-05 Micron Communications, Inc. Procede de formation de ci dans des substrats et circuits enfouis
FR2763186A1 (fr) * 1997-04-30 1998-11-13 Siemens Ag Recepteur de signaux portable
GB2326529A (en) * 1997-06-04 1998-12-23 Identec Ltd Tag interrogation field system
DE19820921A1 (de) * 1998-05-09 1999-11-11 Bayerische Motoren Werke Ag Mobiler Transponder für ein Fahrzeug
DE19832285A1 (de) * 1998-07-17 2000-01-27 Siemens Ag Zugangskontrolleinrichtung für ein Kraftfahrzeug und Verfahren zum Einstellen der Empfindlichkeit der Zugangskontrolleinrichtung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0783190A1 (fr) * 1996-01-02 1997-07-09 Texas Instruments Deutschland Gmbh Antenne passive x-y-z pour transpondeur
FR2763186A1 (fr) * 1997-04-30 1998-11-13 Siemens Ag Recepteur de signaux portable
WO1998049653A1 (fr) * 1997-05-01 1998-11-05 Micron Communications, Inc. Procede de formation de ci dans des substrats et circuits enfouis
GB2326529A (en) * 1997-06-04 1998-12-23 Identec Ltd Tag interrogation field system
DE19820921A1 (de) * 1998-05-09 1999-11-11 Bayerische Motoren Werke Ag Mobiler Transponder für ein Fahrzeug
DE19832285A1 (de) * 1998-07-17 2000-01-27 Siemens Ag Zugangskontrolleinrichtung für ein Kraftfahrzeug und Verfahren zum Einstellen der Empfindlichkeit der Zugangskontrolleinrichtung

Also Published As

Publication number Publication date
WO2003034349A2 (fr) 2003-04-24
US20030076093A1 (en) 2003-04-24

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